Method of manufacturing a lamp
AssigneeKoninklijke Philips Electronics N.V.
InventorsWilhelmus Jacobus Welters, Marten Schuiteman
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Abstract
Method of manufacturing a lamp comprising a transparent vessel containing a gas filling, a luminous element or an electrode extending inside the vessel and connected to a lead wire extending through a pinched portion of the vessel, which lead wire is provided with a protective coating obtained by applying a liquid to the outside of the pinched portion where the lead wire extends from said pinched portion, characterized in that said liquid is a solution of a compound comprising a positive ion of a material chosen for its propensity to react with oxidized lead wire material so as to form the protective coating.
Claims10
Method of manufacturing a lamp comprising a transparent vessel (1) containing a gas filling, a luminous element or an electrode (4) extending inside the vessel (1) and connected to a lead wire (7) extending through a pinched portion of the vessel (1), which lead wire (7) is provided with a protective coating (8) obtained by applying a liquid to the outside of the pinched portion where the lead wire (7) projects from said pinched portion, characterized in that said liquid is a solution of a compound comprising a positive ion of a material chosen for its propensity to react with oxidized lead wire material so as to form the protective coating (8).
Dependencies are inferred from the claim text.